<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>test</title>
</head>
<body>
    <h1 style="background-color: antiquewhite;color: black;">登录</h1>
    <form action="/login/" method="post">
        手机号码：<input type="text" name="telephone" /><br>
        用户密码：<input type="password" name="password" /><br>
        <br><input type="submit" value="登录" />
    </form>

    <hr />

    <h1>{{ flag }}</h1>

</body>
</html>